# Translations:Mathematical foundation of 3-D migration/141/en

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To expedite a determination of this interpolation filter, derive the prediction filter associated with the data array that would have been created by interpolation, (*P*_{0}, *P*_{1}, *P*_{2}). Write equation (**G-43**) for the case of the data array (*P*_{0}, *P*_{1}, *P*_{2}) to compute the next element *P*_{3} using the one-step prediction filter as